CN110467540A - A kind of synthetic method of fluorine-containing polyethyleneimine - Google Patents

A kind of synthetic method of fluorine-containing polyethyleneimine Download PDF

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Publication number
CN110467540A
CN110467540A CN201910861974.1A CN201910861974A CN110467540A CN 110467540 A CN110467540 A CN 110467540A CN 201910861974 A CN201910861974 A CN 201910861974A CN 110467540 A CN110467540 A CN 110467540A
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fluorine
polyethyleneimine
containing polyethyleneimine
functional material
synthetic method
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吴宏描
钱杨伟
仲兆祥
邢卫红
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Nanjing Tech University
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Nanjing Tech University
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C233/00Carboxylic acid amides
    • C07C233/01Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C233/34Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups
    • C07C233/35Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom
    • C07C233/36Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom having the carbon atom of the carboxamide group bound to a hydrogen atom or to a carbon atom of an acyclic saturated carbon skeleton
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C311/00Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
    • C07C311/01Sulfonamides having sulfur atoms of sulfonamide groups bound to acyclic carbon atoms
    • C07C311/02Sulfonamides having sulfur atoms of sulfonamide groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton
    • C07C311/03Sulfonamides having sulfur atoms of sulfonamide groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton having the nitrogen atoms of the sulfonamide groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C311/05Sulfonamides having sulfur atoms of sulfonamide groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton having the nitrogen atoms of the sulfonamide groups bound to hydrogen atoms or to acyclic carbon atoms to acyclic carbon atoms of hydrocarbon radicals substituted by nitrogen atoms, not being part of nitro or nitroso groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/02Polyamines
    • C08G73/0206Polyalkylene(poly)amines

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

The present invention relates to a kind of synthetic methods of fluorine-containing polyethyleneimine.The fluorine-containing polyethyleneimine is prepared by polyethyleneimine and perfluoroalkyl carboxylic acid halides or the condensation of per-fluoroalkyl sulfonyl halogen.Preparation method are as follows: polyethyleneimine is dissolved in solvent, perfluoroalkyl carboxylic acid halides or per-fluoroalkyl sulfonyl halogen are added dropwise into reaction system in a heated condition, removes solvent after being stirred to react, obtains the fluorine-containing polyethyleneimine cross-linked material.The material can be applied to the fields such as the preparation of seperation film, the preparation of adsorbent and gene transfection Materials, have the performances such as solvent resistant, acid and alkali-resistance, antipollution.

Description

A kind of synthetic method of fluorine-containing polyethyleneimine
Technical field
The invention belongs to macromolecule modified technical fields, and in particular to one kind can make seperation film, adsorbent, gene transfection material The synthetic method of the fluorine-containing polyethyleneimine of material.
Background technique
Fluorine material has the characteristics such as excellent thermal stability, chemical stability and low-surface-energy, with polytetrafluoroethylene (PTFE), gathers Vinylidene is that the fluoropolymer of representative has mature application in terms of separating film preparation.Fluoropolymer is in all multi-solvents In dissolubility it is poor, traditional phase separation method is unable to satisfy the exploitation demand of a greater variety of fluoropolymer seperation films.Closely Nian Lai has the document and patent report that functional fluoropolymer film is prepared using water-soluble preferable fluorine-containing cross-linked material successively.Middle promulgated by the State Council Bright patent ZL CN 2 201010589192.6 " film function monomer and its nanofiltration membrane preparation method containing hexafluoroisopropanol group " A kind of cross-linked material of function monomer containing hexafluoroisopropanol of middle invention with acyl chloride material by interface-cross-linked, it is anti-by controlling Condition optimizing is answered to go out fluorine-containing nanofiltration membrane, prepared fluorine-containing nanofiltration membrane is preferable to bivalent cation and anion rejection effect, and And there is very strong resistance to free chlorine oxidation susceptibility.Li Yafei, Jiang Zhongyi et al. pass through the condensation of triethylene tetramine and perfluoro caprylic acid Reaction prepares the fluorine-containing polyamine in water-soluble, passes through the amido and polyamide film surface carboxylic acid in fluorine-containing polynary amine structure Condensation in nanofiltration membrane surface modification full-fluorine group, the fluorine-containing nanofiltration membrane show fabulous antifouling property (Y. Li et al, J. Membr. Sci, 2014,455,15-23.).The fluoropolymer used in foregoing invention suffers from preferable water-soluble Property, it is suitable for more film-forming methods.
Polyethyleneimine is a kind of Polycationic water soluble polymer, has linear and two kinds of branched knots Structure, there are a large amount of amidos in skeleton, and wherein primary amine, secondary amine, tertiary amine ratio 1:2:1 in branched polyethylene imine structure, have Fabulous reactivity.Polyethyleneimine can prepare microballoon such as Chinese patent by being crosslinked other small molecules ZL201110140086.4, United States Patent (USP) US2010/0267108A1 etc. or thin-film material, in gene transfection Materials, adsorption material There is more application in material, separation membrane material, active amine can carry out a variety of chemical modifications in structure.Chinese invention patent One has been invented in ZL CN 201610584829.X " a kind of the PEI compounds of modification and its preparation method and application " The primary amine hydrogen in polyethyleneimine that the PEI compounds of kind modification are 1.8k to molecular weight by heptafluorobutyric anhydride replaces It obtains, can be used as excellent genes delivery system.However heptafluorobutyric anhydride higher cost, how by fluorine-containing reagent and reaction The screening of condition, preparing, there is water-soluble, low cost fluorine-containing polyethyleneimine turn it in seperation film, adsorbent even gene Contaminating the fields such as material, specifically better application prospect is problem to be solved of the present invention.
Summary of the invention
It is an object of the invention to solve the scarcity of the fluorine-containing cross-linked material of water-soluble low cost, providing one kind can be used for point The preparation method of novel low-cost functional fluoropolymer material from film preparation, gene transfection Materials and adsorbent material.
The present invention is achieved through the following technical solutions:
A kind of structure fragment general formula of fluorine-containing polyethyleneimine functional material is as follows:
Wherein dotted line represents N atom connection branch or hydrogen, Z be sulfonyl () or acyl group ();R is perfluoroalkyl, General formula CnF2n+1, n 1-18.
A kind of preparation method of fluorine-containing polyethyleneimine functional material, includes the following steps, polyethyleneimine is dissolved in In solvent, perfluoroalkyl carboxylic acid halides or per-fluoroalkyl sulfonyl halogen are added dropwise into the solution, in a heated condition, after being stirred to react Solvent is removed, the fluorine-containing polyethyleneimine material is obtained.
The preparation method of fluorine-containing polyethyleneimine material according to the present invention, polyethyleneimine are substrate, molecule Amount is 600 Da, 1800 Da, the one or more of 10000 Da and 70000 Da;
The preparation method of fluorine-containing polyethyleneimine material according to the present invention, related fluorination reagent perfluoroalkyl acyl Halogen general structure is, per-fluoroalkyl sulfonyl halogen general structure is, wherein R is perfluoroalkyl, general formula CnF2n+1, n 1-18, X are halogen atom, including fluorine, chlorine, bromine, one of iodine.
The preparation method of fluorine-containing polyethyleneimine material according to the present invention, which is characterized in that involved in step Fluorination reagent and the mass ratio of polyethyleneimine substrate include range from 1:1 ~ 1:100.
The preparation method of fluorine-containing polyethyleneimine material according to the present invention, reaction dissolvent include methanol, and ethyl alcohol is different Propyl alcohol, acetonitrile, toluene, pyridine, tetrahydrofuran, n,N-Dimethylformamide (DMF), n,N-dimethylacetamide (DMAc), N-Methyl pyrrolidone (NMP), one or more of dimethyl sulfoxide.
The preparation method of fluorine-containing polyethyleneimine material according to the present invention, heating temperature are 25 DEG C ~ 120 ℃。
The utility model has the advantages that
The advantage of the invention is that multi-solvents is selected to guarantee the dissolution of reactant to promote the generation of reaction, and then improve poly- second The fluorinated graft rate of alkene imines passes through the grafting rate of the adjustable full-fluorine group of the control of reaction condition.Gained fluorinated polyethylene is sub- The amidine functional group of amine full-fluorine group segment and high reaction activity containing low-surface-energy simultaneously, convenient for applied to crosslinking, surface The processes such as coating prepare microballoon and film, are a kind of cost-efficiently functionalization cross-linked materials.
Detailed description of the invention
Fluorine-containing polyethyleneimine infared spectrum described in Fig. 1 embodiment 1.
Fluorine-containing polyethyleneimine nuclear magnetic spectrum described in Fig. 2 embodiment 1.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is described further, but the embodiment given is not constituted and wanted to right Ask the limitation of saturation range.
Embodiment 1
The synthesis of fluorine-containing polyethyleneimine functional material, substrate are 1800 molecular weight polyethyleneimines, fluorination reagent perfluoro butyl Sulfuryl fluoride, fluorinated volume are 40 wt%, (1: 2.5)
5 g of polyethyleneimine of 600 Da molecular weight is added into eggplant-shape bottle, 50 mL of DMF is added, being heated to 60 degrees Celsius will It is dissolved.2 g of perfluoro butyl sulfonic acid fluoride is slowly added dropwise at this temperature, magnetic agitation is reacted 12 hours.It is removed with Rotary Evaporators Solvent is removed, then vacuum drying obtains the fluorinated polyethylene imine product of 40 wt% grafting amounts.
Product infared spectrum is as shown in Figure 1, comparison original PEI infared spectrum, N-H stretch shock absorption (3354 cm-1, 3328-1) obviously weaken, CF3、CF2There are (1204 cm in group characteristic absorption-1、1130 cm-1).Product nuclear magnetic spectrum such as Fig. 2 institute Show, chemical shift -82.3 ppm, -114.4 ppm, -122.2 ppm and -127.1 ppm respectively correspond the CF on perfluoro butyl3 With three groups of CF2Group.Fluorine signal, which broadens, proves that it is grafted on polymer P EI.Impurity is mainly perfluoro butyl sulfonic acid, and content < 5%.Prove product grafting rate > 95%.
Embodiment 2
The synthesis of fluorine-containing polyethyleneimine functional material, substrate are 600 molecular weight polyethyleneimines, fluorination reagent perfluor butyryl Chlorine, fluorinated volume are 100 wt% (1: 1)
5 g of polyethyleneimine of 600 Da molecular weight is added into eggplant-shape bottle, 50 mL toluene are added, being heated to 60 degrees Celsius will It is dissolved.5 g of perfluor butyl chloride is slowly added dropwise at this temperature, magnetic agitation is reacted 12 hours.It is removed with Rotary Evaporators molten Agent, then vacuum drying obtains the fluorinated polyethylene imine product of 100 wt% grafting amounts.
Embodiment 3
The synthesis of fluorine-containing polyethyleneimine functional material, substrate are 70000 molecular weight polyethyleneimines, fluorination reagent perfluoro butyl Sulfuryl fluoride, fluorinated volume are 1 wt%(1: 100)
5 g of polyethyleneimine of 70000 Da molecular weight is added into eggplant-shape bottle, 50 mL DMF and 10 mL isopropanols are added, add Heat is dissolved to 60 degrees Celsius.50 mg of perfluoro butyl sulfonic acid fluoride is slowly added dropwise at this temperature, magnetic agitation reaction 12 is small When.Solvent is removed with Rotary Evaporators, then vacuum drying obtains the fluorinated polyethylene imine product of 1 wt% grafting amount.
Embodiment 4
The synthesis of fluorine-containing polyethyleneimine functional material, substrate are 600 molecular weight polyethyleneimines, fluorination reagent perfluoro capryl sulphur Acyl fluorides, fluorinated volume are 20 wt%(1: 5)
The polyethyleneimine 5g of 600 Da molecular weight is added into eggplant-shape bottle, 50 mL acetonitriles and 10 mL isopropanols, heating is added It is dissolved to 60 degrees Celsius.1 g of perfluoro butyl sulfonic acid fluoride is slowly added dropwise at this temperature, magnetic agitation is reacted 12 hours.With Rotary Evaporators remove solvent, and then vacuum drying obtains the fluorinated polyethylene imine product of 20 wt% grafting amounts.
Embodiment 5
The synthesis of fluorine-containing polyethyleneimine functional material, substrate are 600 molecular weight polyethyleneimines, fluorination reagent perfluoro capryl sulphur Acyl fluorides, fluorinated volume are 20 wt%(1: 5)
The polyethyleneimine 5g of 600 Da molecular weight is added into eggplant-shape bottle, 50 mL toluene and 10 mL isopropanols, heating is added It is dissolved to 60 degrees Celsius.1 g of full-fluorine octyl sulfuryl fluoride is slowly added dropwise at this temperature, magnetic agitation is reacted 12 hours.With Rotary Evaporators remove solvent, and then vacuum drying obtains the fluorinated polyethylene imine product of 20 wt% grafting amounts.
Embodiment 6
The synthesis of fluorine-containing polyethyleneimine functional material, substrate are 600 molecular weight polyethyleneimines, fluorination reagent perfluoro-octanoyl Chlorine, fluorinated volume are 20 wt%(1: 5)
5 g of polyethyleneimine of 600 Da molecular weight is added into eggplant-shape bottle, 50 mL NMP and 10 mL isopropanols, heating is added It is dissolved to 60 degrees Celsius.1 g of perfluorooctane chloride is slowly added dropwise at this temperature, magnetic agitation is reacted 12 hours.With rotation Evaporimeter removes solvent, and then vacuum drying obtains the fluorinated polyethylene imine product of 20 wt% grafting amounts.
Embodiment 7
The synthesis of fluorine-containing polyethyleneimine functional material, substrate are 600 molecular weight polyethyleneimines, fluorination reagent perfluor butyryl Fluorine, fluorinated volume 20wt%(1: 5)
Be added the polyethyleneimine 5g of 600 Da molecular weight into eggplant-shape bottle, 50 mL pyridines be added, be heated to 60 degrees Celsius by its Dissolution.1 g of perfluor butyryl fluorine is slowly added dropwise at this temperature, magnetic agitation is reacted 12 hours.Solvent is removed with Rotary Evaporators, Then vacuum drying obtains the fluorinated polyethylene imine product of 20 wt% grafting amounts.
Embodiment 8
The synthesis of fluorine-containing polyethyleneimine functional material, substrate are 600 molecular weight polyethyleneimines, fluorination reagent fluoroform sulphur Acyl chlorides, fluorinated volume are 20 wt%(1: 5)
5 g of polyethyleneimine of 600 Da molecular weight is added into eggplant-shape bottle, 50 mL DMF are added, being heated to 25 degrees Celsius will It is dissolved.1 g of trifluoromethanesulfonyl chloride is slowly added dropwise at this temperature, magnetic agitation is reacted 12 hours.It is removed with Rotary Evaporators Solvent is removed, then vacuum drying obtains the fluorinated polyethylene imine product of 20 wt% grafting amounts.
Embodiment 9
The synthesis of fluorine-containing polyethyleneimine functional material, substrate are 600 molecular weight polyethyleneimines, fluorination reagent perfluor palmityl Chlorine, fluorinated volume are 10 wt%(1: 10)
The polyethyleneimine 5g of 600 Da molecular weight is added into eggplant-shape bottle, DMAc is added, is heated to 60 degrees Celsius and is dissolved. 1 g of perfluor hexadecanoyl chloride is slowly added dropwise at this temperature, magnetic agitation is reacted 12 hours.Solvent is removed with Rotary Evaporators, so Vacuum drying obtains the fluorinated polyethylene imine product of 10 wt% grafting amounts afterwards.
Embodiment 10
The synthesis of fluorine-containing polyethyleneimine functional material, substrate are 70000 molecular weight polyethyleneimines, fluorination reagent perfluoro butyl Sulfuryl fluoride, fluorinated volume are 5 wt%(1: 20)
5 g of polyethyleneimine of 70000 Da molecular weight is added into eggplant-shape bottle, 50 mL DMF are added, are heated to 120 degrees Celsius It is dissolved.250 mg of perfluoro butyl sulfonic acid fluoride is slowly added dropwise at this temperature, magnetic agitation is reacted 12 hours.Use rotary evaporation Instrument removes solvent, and then vacuum drying obtains the fluorinated polyethylene imine product of 5 wt% grafting amounts.

Claims (7)

1. a kind of fluorine-containing polyethyleneimine functional material, the structure fragment general formula of the fluorinated material are as follows:
Wherein dotted line represents N atom connection branch or hydrogen, and Z is sulfonyl or acyl group;R is perfluoroalkyl, general formula CnF2n+1, n 1- 18。
2. a kind of synthetic method of fluorine-containing polyethyleneimine functional material, which is characterized in that include the following steps, by polyethyleneimine Amine is dissolved in solvent, and perfluoroalkyl carboxylic acid halides or per-fluoroalkyl sulfonyl halogen are added dropwise into the solution, and in a heated condition, stirring is anti- Solvent is removed after answering, and obtains fluorine-containing polyethyleneimine material.
3. the synthetic method of the fluorine-containing polyethyleneimine functional material as described in claim 2, which is characterized in that polyethylene Its molecular weight of imines is 600 Da, 1800 Da, the one or more of 10000 Da and 70000 Da.
4. the synthetic method of the fluorine-containing polyethyleneimine functional material as described in claim 2, which is characterized in that related Fluorination reagent is perfluoroalkyl carboxylic acid halides or per-fluoroalkyl sulfonyl halogen.
5. the synthetic method of the fluorine-containing polyethyleneimine functional material as described in claim 2, which is characterized in that in step The mass ratio of related fluorination reagent and polyethyleneimine is 1:1 ~ 1:100.
6. the synthetic method of the fluorine-containing polyethyleneimine functional material as described in claim 2, which is characterized in that reaction dissolvent For methanol, ethyl alcohol, isopropanol, acetonitrile, toluene, pyridine, tetrahydrofuran, n,N-Dimethylformamide, N, N- dimethylacetamide Amine, N-Methyl pyrrolidone, one or more of dimethyl sulfoxide.
7. the synthetic method of the fluorine-containing polyethyleneimine functional material as described in claim 2, which is characterized in that heating temperature It is 25 DEG C ~ 120 DEG C.
CN201910861974.1A 2019-09-12 2019-09-12 A kind of synthetic method of fluorine-containing polyethyleneimine Pending CN110467540A (en)

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Cited By (2)

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CN114848830A (en) * 2022-04-26 2022-08-05 复旦大学附属眼耳鼻喉科医院 Preparation for improving corneal crosslinking effect and corneal crosslinking combined preparation
CN116731557A (en) * 2023-07-26 2023-09-12 江苏唐彩新材料科技股份有限公司 High-water-resistance polyamide printing ink and preparation method thereof

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114848830A (en) * 2022-04-26 2022-08-05 复旦大学附属眼耳鼻喉科医院 Preparation for improving corneal crosslinking effect and corneal crosslinking combined preparation
CN116731557A (en) * 2023-07-26 2023-09-12 江苏唐彩新材料科技股份有限公司 High-water-resistance polyamide printing ink and preparation method thereof
CN116731557B (en) * 2023-07-26 2024-03-05 江苏唐彩新材料科技股份有限公司 High-water-resistance polyamide printing ink and preparation method thereof

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